Why Is Water a Polar Molecule?

The unique structure of the polar water molecule, H2O, is the basis for the thermal response of water when subjected to an alternating RF energy field.

Water is polar because of the difference in electronegativity between hydrogen and oxygen atoms. The highly electronegative oxygen atom attracts electrons of negative charge to it, making the region around the oxygen more negative than the areas around the two hydrogen atoms*. Therefore, the Hydrogen side of the molecule is relatively positive to the negative Oxygen side.